Apparatus for after-treatment of fresh made rayon thread



Feb. 22, 1938. NAKANE 2,109,301

APPARATUS FOR AFTER-TREATMENT OF FRESH MADE RAYON THREAD Filed Feb. 25, 1955 Patented Feb. 22, 1938 UNITED STATES APPARATUS FOR AFTER-TREATMENT OF FRESH MADE RAYON THREAD Kamii Nakane, Nada-kn, Kobe, Japan Application February 25, 1935. Serial No. 8,176 In Japan March 3, 1934 1 Claim.

My invention relates to the improvement in apparatus for after-treatment of fresh made rayon thread so devised that the first chain-belt and the second chain-belt with holding grooves in regular row thereon respectively are equipped in series, the traveling speed of the former chainbelt is made lower than that of the latter, the above said grooves are arranged to hold the sticks so that the latter freely insert into and come out from the former, and over the first chain-belt a funnel for thread and injectors for solution are provided, and when the sticks inserted in regular order into the holding grooves on the first chainbelt come to the end thereof, they are automatically shifted one by one into the grooves on the second chain-belt.

The object of my invention is that at hanging up the thread on the stick as well as thereafter neither injurious tension nor rubbing injury can be given to the thread nor any irregularity into the length of the thread.

I attain this object by the mechanism illustrated in the accompanying drawing, in which:

Fig. 1 is the elevation of this invention.

Fig. 2 is the plan showing the essential parts.

Fig. 3 is an enlarged elevation showing stick feeding device.

In the drawing (I), (I') and (2), (2) are endless chainbelts on which the holding grooves are made in regular row and the traveling speed of the endless chain-belt (I), (I') are so adjusted as to be lower than that of the endless chain-belt (2),(2) to which hooks (4), (I) are attached, (5) is a funnel for thread, (I5), ('I), (8) and (9) are injectors for solution, (I0), (II), (I2), (I3) and (II) are receiving pans for waste solution, (I5) (I5') is an inclined guide bar upon which a step (I6) is provided, (I1) is a fixed guide piece, (I8) is a guide hole perforated through the inclined guide bar (I5), (I5'), (I9) is a reciproeating bar loosely inserted into the hole (I8) the bottom end face of which comes to contact with an eccentric plate (2|) into which the rotating shaft is fixed by insertion, (22) is an inclined receiving plate and (23) is a guide roller.

Mounting the sticks (a), (a) on the inclined guide bar (I 5), (I5') and rotating the rotating shaft (20), the reciprocating bar (I9) is pushed up accompanying the rotation of the eccentric plate (2|) and which action pushes up in turn the stick (a) in the lowest position on the guide bar while this stick (a) shifts along the side face of the fixed guide piece (I1) and does not roll upward the inclined guide bar (I5), (l5') but decidedly rolls downward so that it falls into the holding groove (3) at last and travels accompanying the motion of the chain-belt (I), (I').

As the fresh made rayon thread (A) being straightly hanging down from the funnel for thread (I) over the chain-belt (I), (I') and the stick (a) moving in response to the motion of the chain-belt, it comes to contact with the hanging thread (A) above said chain-belt and continues its traveling after the contact. The thread (A) continuing to hang down from the funnel for thread and its hanging speed being higher than that of the chain-belt (I), (I') and the thread being in a wet state, it undergoes neither any traction nor rubbing when it hangs on the stick (a); and now the speed of thread hanging down from the funnel for thread (5) and the travelling speed of the chain-belt (I), (I') being both regular, the regularity of the length of the hanging thread is also kept as a matter of course; and while the thread moves accompanied to the motion of the chain-belt (I), (I) it undergoes washing, deacidification and bleaching by the solution poured in shower from the injectors for solution (6), (1), (8) and (9); then again the thread hanging on the stick (a) undergoing even pressure from the solution showering down on both the sides of the stick (a), there is no danger of producing any irregularity to the length of thread hanging thereon nor of its being caught on machine frame; and the thread being in motion hung on the stick (a), no tension is given to it at all.

While the thread hung on the stick (0) moves accompanied to the motion of the chain-belt (I), (I'), it may produce tangle and this invention unties such entanglement very easily, that is, as the traveling speed of the chain-belt (2), (2') is higher than that of the chain-belt (I), (I), when the chain-belt (2), (2') with hooks (4) carries the sticks from the chain-belt (I), (I') to the chain-belt (2), (2'), on the latter chain-belt the space between one groove and another in which the stick is held, being wider than that of the chain-belt (I), (I'), the thread is extended accordingly and thereby unties the tangle.

Naturally the fresh made rayon thread being very delicate, its strength to resist tension is week, it is snappable and therefore rubbing injury is detestable, and it is necessary that it be not tangled at all. In this invention very little tension or rubbing injury is given to the thread, so that there is no fear of its being snapped, and as there is no irregularity in the length of thread hung on the moving sticks, there is no danger of the thread being snapped or rubbed by touching the machine frame.

I claim:

A machine for the after-treatment of rayon threads, comprising in combination, the following elements, to wit: an endless conveyor composed of a pair of chains in parallel relation, composed of links transversely grooved for the reception of thread supporting sticks, means for feeding said sticks to the conveyor and depositing the sticks in said grooves, one by one, in timed relation to the movement of the conveyor, means for feeding thread to the said conveyor from an overhead source and causing said thread to be caught by said sticks and suspended from the same in the i'orm or loose vertical loops in vertical parallel relation, means for operating said conveyor to cause the loops to be carried back from the point of first formation, a second conveyor similar to the first and geared to the latter so as to travel at a faster rate than the latter, and means for transferring the sticks and suspended loops to the second conveyor and causing said loops to be shortened and spaced apart a greater distance than by the first conveyor.

KAZUJI NAKANE. 

